\begin{table}[htbp]\centering
\caption{\textbf{GSS Descriptive Statistics 1973-1991}. Mean and standard deviation of GSS data (in parentheses) per survey year from 1973-1991.\label{tab:gssdesc1}}
\begin{tabular}{l*{16}{c}}
\hline\hline
                    &        1973&        1974&        1975&        1976&        1977&        1978&        1980&        1982&        1983&        1984&        1986&        1987&        1988&        1989&        1990&        1991\\
\hline
Environmental Spending&        0.65&        0.65&        0.58&        0.58&        0.52&        0.56&        0.52&        0.57&        0.58&        0.61&        0.63&        0.67&        0.69&        0.76&        0.75&        0.72\\
                    &      (0.48)&      (0.48)&      (0.49)&      (0.49)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.49)&      (0.49)&      (0.48)&      (0.47)&      (0.46)&      (0.43)&      (0.43)&      (0.45)\\
[1em]
Confidence in Scientific Community&        0.42&        0.52&        0.42&        0.49&        0.45&        0.40&        0.47&        0.39&        0.45&        0.48&        0.41&        0.45&        0.43&        0.44&        0.41&        0.44\\
                    &      (0.49)&      (0.50)&      (0.49)&      (0.50)&      (0.50)&      (0.49)&      (0.50)&      (0.49)&      (0.50)&      (0.50)&      (0.49)&      (0.50)&      (0.50)&      (0.50)&      (0.49)&      (0.50)\\
[1em]
Republican          &        0.34&        0.30&        0.31&        0.29&        0.30&        0.33&        0.32&        0.28&        0.35&        0.38&        0.37&        0.33&        0.40&        0.42&        0.43&        0.43\\
                    &      (0.47)&      (0.46)&      (0.46)&      (0.45)&      (0.46)&      (0.47)&      (0.47)&      (0.45)&      (0.48)&      (0.48)&      (0.48)&      (0.47)&      (0.49)&      (0.49)&      (0.50)&      (0.50)\\
[1em]
Independent         &        0.10&        0.10&        0.13&        0.14&        0.11&        0.14&        0.16&        0.11&        0.11&        0.11&        0.12&        0.10&        0.11&        0.10&        0.10&        0.11\\
                    &      (0.30)&      (0.30)&      (0.34)&      (0.35)&      (0.32)&      (0.35)&      (0.36)&      (0.32)&      (0.31)&      (0.31)&      (0.32)&      (0.30)&      (0.31)&      (0.31)&      (0.30)&      (0.32)\\
[1em]
Democrat            &        0.56&        0.60&        0.56&        0.57&        0.59&        0.53&        0.53&        0.60&        0.54&        0.51&        0.52&        0.57&        0.49&        0.48&        0.47&        0.45\\
                    &      (0.50)&      (0.49)&      (0.50)&      (0.50)&      (0.49)&      (0.50)&      (0.50)&      (0.49)&      (0.50)&      (0.50)&      (0.50)&      (0.49)&      (0.50)&      (0.50)&      (0.50)&      (0.50)\\
[1em]
Age                 &       43.24&       43.17&       42.62&       44.22&       43.56&       42.63&       43.40&       43.04&       42.88&       44.13&       44.40&       43.60&       44.41&       43.96&       44.63&       44.41\\
                    &     (16.35)&     (16.82)&     (17.06)&     (18.12)&     (16.52)&     (17.09)&     (17.10)&     (17.36)&     (16.81)&     (17.23)&     (17.22)&     (16.95)&     (17.69)&     (17.20)&     (16.97)&     (17.05)\\
[1em]
Female              &        0.51&        0.52&        0.53&        0.54&        0.53&        0.57&        0.53&        0.56&        0.55&        0.56&        0.57&        0.55&        0.54&        0.55&        0.54&        0.57\\
                    &      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)\\
[1em]
Less than HS        &        0.33&        0.31&        0.31&        0.31&        0.32&        0.27&        0.27&        0.27&        0.24&        0.24&        0.25&        0.23&        0.21&        0.18&        0.18&        0.18\\
                    &      (0.47)&      (0.46)&      (0.46)&      (0.46)&      (0.47)&      (0.44)&      (0.44)&      (0.44)&      (0.43)&      (0.43)&      (0.43)&      (0.42)&      (0.40)&      (0.38)&      (0.38)&      (0.38)\\
[1em]
HS Graduate         &        0.51&        0.51&        0.52&        0.51&        0.51&        0.55&        0.53&        0.54&        0.53&        0.53&        0.52&        0.53&        0.55&        0.55&        0.55&        0.55\\
                    &      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)&      (0.50)\\
[1em]
Some College        &        0.01&        0.02&        0.02&        0.02&        0.02&        0.03&        0.03&        0.05&        0.04&        0.03&        0.03&        0.04&        0.05&        0.08&        0.06&        0.05\\
                    &      (0.12)&      (0.13)&      (0.16)&      (0.13)&      (0.15)&      (0.17)&      (0.17)&      (0.21)&      (0.20)&      (0.18)&      (0.18)&      (0.21)&      (0.21)&      (0.26)&      (0.24)&      (0.22)\\
[1em]
College Graduate    &        0.15&        0.16&        0.14&        0.16&        0.15&        0.15&        0.17&        0.15&        0.19&        0.20&        0.20&        0.20&        0.19&        0.20&        0.22&        0.22\\
                    &      (0.35)&      (0.37)&      (0.35)&      (0.36)&      (0.36)&      (0.36)&      (0.38)&      (0.36)&      (0.39)&      (0.40)&      (0.40)&      (0.40)&      (0.39)&      (0.40)&      (0.41)&      (0.42)\\
[1em]
White               &        0.88&        0.90&        0.89&        0.92&        0.88&        0.89&        0.90&        0.72&        0.89&        0.85&        0.86&        0.68&        0.85&        0.86&        0.84&        0.84\\
                    &      (0.32)&      (0.30)&      (0.31)&      (0.27)&      (0.33)&      (0.32)&      (0.30)&      (0.45)&      (0.32)&      (0.35)&      (0.35)&      (0.47)&      (0.36)&      (0.34)&      (0.37)&      (0.37)\\
\hline\hline
\end{tabular}
\end{table}
